SH7137 Datasheet, PDF (85/1160 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 4 Clock Pulse Generator (CPG)
4.2 Input/Output Pins
Table 4.2 shows the CPG pin configuration.
Table 4.2 Pin Configuration
Pin Name
Abbr. I/O
Description
Crystal input/output XTAL
pins
EXTAL
(clock input pins)
Output
Input
Connects a crystal resonator.
Connects a crystal resonator or an external clock.
Clock output pin CK
Output
Outputs an external clock.
Note: To use the clock output (CK) pin, appropriate settings may be needed for the pin in the pin
function controller (PFC) in some cases. For details, refer to section 20, Pin Function
Controller (PFC).
Rev. 2.00 Sep. 10, 2008 Page 59 of 1130
REJ09B0402-0200